Rear derealure.
Hi.
When I came back from a ride in some rain today, I discovered that the Guide pulley was basically seatting on the rear cogs. I tried adjusting the screw, but I messed up the thread (going to get new screw tomorrow). Although it seemed to work.
Anyway what could have caused it. I don't think the screw got loose. It was practically welded in to place, when I tried adjusting it.
Thx.